4. The combustion of propane (C3H8) with O2 according to the given balanced chemical equation releases 531 kcal. How many kilocalories of energy are released when 0.750 mol of propane is burned?

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit

What is the percentage composition of carbon in the compound ch4